#include<stdio.h>
int main(){
	int month;
	printf("please enter your love month\n");
	scanf("%d",&month);
	switch(month)
	{
		case 3:
		case 4:
		case 5:
		printf("%d is spring\n",month);
		break;
			case 6:
	case 7:
	case 8:
	printf("%d is summer\n",month);
	break;
	case 9:
	case 10:
	case 11:
	printf("%d is autumn\n",month);
	break;
	case 12:
	case 1: 
	case 2: 
	printf("%d is winter\n",month);
	break;
	default :
		printf("sorry your are error!");
	}
		return 0;
} 
